The stability of gas pressure is crucial to assure the quality of ductile cast iron pipes.
煤气压力的稳定性是保证球墨铸管退火质量的关键。
The CB wash can be used to produce as-cast centrifugal ductile iron pipes by heated mold method.
并可用于热模法铸态离心球铁管的生产。
The CB wash can be used to produce as-cast centrifugal ductile iron pipes by heated mold method.
并可用于热模法铸态离心球铁管的生产。
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